Circadian regulation of bioluminescence in Gonyaulax involves translational control.
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چکیده
منابع مشابه
Shifting the phase of the circadian rhythm in bioluminescence in gonyaulax with vanillic Acid.
Exposure for 4 hours to vanillic acid (4-hydroxy 3-methoxy benzoic acid) caused large delay phase shifts (5 to 6 hours) in the circadian rhythm of bioluminescence in Gonyaulax polyedra, when assayed at either 10 to 14 circadian time or 22 to 02 circadian time in constant light and temperature, provided that the pH of the medium was 7.1 or lower. Corresponding changes in the pH with acetic acid ...
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متن کاملThe circadian bioluminescence rhythm of Gonyaulax is related to daily variations in the number of light-emitting organelles.
The number of scintillons, which are cellular organelles responsible for light emission in the marine alga Gonyaulax, were counted by both immunofluorescence and electron microscopic methods and found to vary tenfold between subjective day and subjective night. The number of scintillons peaks during the subjective night, as does stimulated bioluminescence (flashing). Furthermore, the number dro...
متن کاملNitrate deficiency shortens the circadian period in gonyaulax.
The circadian rhythms in bioluminescence and photosynthesis in Gonyaulax polyedra suspended in unsupplemented sea water have been compared to the same rhythms in f/2, an enriched seawater medium. Cells suspended in sea water for 2 days in continuous light (450 microwatts per square centimeter) showed significantly shorter circadian periods and lower amplitudes than did cells in f/2 medium (a pe...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1989
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.86.1.172